209.251.48.0/21 - Centrilogic (AS19693)
CIDR
209.251.48.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Buffalo
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.251.48.0/21 | AS19693 CENTRILOGIC-ASN - Centrilogic, Inc. | No ROA | Other IRR | 2026-10-12 |
More-Specific Announcements
4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.251.48.0/23 | AS19693 CENTRILOGIC-ASN - Centrilogic, Inc. | No ROA | - | 2026-10-12 |
| 209.251.50.0/24 | AS14453 AS-AKN - ADVANCED KNOWLEDGE NETWORKS | No ROA | - | 2026-10-12 |
| 209.251.51.0/24 | AS19693 CENTRILOGIC-ASN - Centrilogic, Inc. | No ROA | - | 2026-10-12 |
| 209.251.52.0/22 | AS19693 CENTRILOGIC-ASN - Centrilogic, Inc. | No ROA | - | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS19693 | Other IRR | MAINT-RR | 2023-11-13 |
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/209.251.48.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.251.48.0/21" | jq
External Links